How to Troubleshoot a 115-HP Suzuki Outboard

Written by patrick nelson
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How to Troubleshoot a 115-HP Suzuki Outboard
Check for blockages in the water intake -- such as weeds -- which cause overheating. (rain image by hazel proudlove from Fotolia.com)

Suzuki's 115 HP (horsepower) outboards feature a 1,950cc displacement four-stroke engine. Counter-rotation is available as an option. The engines are suitable for saltwater or freshwater boats. Problems with the outboard engines can be related to warning buzzers, fuel efficiency issues, saltwater maintenance problems and the battery. These problems can be corrected by following some troubleshooting steps.

Skill level:
Moderately Easy

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Things you need

  • Silicon spray
  • 10 to 15 Amp battery charger

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Instructions

  1. 1

    Change the oil if you hear the warning buzzer sound after about 20 hours of operation. The warning buzzer sounding with a loss of engine rpm (revolutions per minute) indicates a problem with the oil level, or overheating. Change the oil and check for blockages in the water intake, which cause overheating. The water intake, which cools the engine, is forward of the propeller. A lack of water being expelled as the engine operates is a giveaway that it's blocked.

  2. 2

    Clean the bottom of the boat to increase fuel efficiency if the 115 HP Suzuki gives you bad gas mileage. Use a smooth, EPA-approved bottom paint, keeping paint strokes parallel to the keel. Remove barnacles and algae promptly.

  3. 3

    Remove the outboard motor cover and apply a thin coat of silicone spray to the power head if the engine is accumulating salt deposits and the finish is being damaged. Store the Suzuki out of direct sunlight and keep the engine panels waxed after washing with soap and water.

  4. 4

    Check the battery for cracks or other damage if you encounter issues starting the engine. The cyclical nature of the use of outboards lends itself to the use of a high-quality 10 to 15 Amp charger.

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